Carbon deposits on your spark plugs coupled with a gradual deterioration of the electrodes can lead to reduced power, poor response, and worsening fuel economy. Ensure your BMW is firing cleanly on all cylinders with these brand-new Double Platinum spark plugs from Bosch, an original equipment supplier to BMW. Utilising precious metal compounds to provide greater heat resistance and a 100,000kms service life, these spark plugs are the ideal choice for modern BMWs.